“…E-cigarettes and waterpipe are popular among adolescents all over the world (Kristjansson et al, 2017; Maziak et al, 2015; U.S.DHHS, 2016), and multi-product use is increasingly common (Chaffee, Couch, & Gansky, 2017). The rising epidemic of e-cigarette and waterpipe use might be explained by the sensory properties of these products, the perceived lower harm, the context of consumption, the decreasing attractiveness of conventional cigarettes, and the lack of prevention programs targeting the public image of e-cigarettes and waterpipe (Kong & Krishnan-Sarin, 2017; Lopez, Eissenberg, Jaafar, & Afifi, 2017). …”